Definition of big data. Big data, also known as the huge amount of information, refers to the amount of data involved in the scale is so huge that it can not be through the human brain or even mainstream software tools, in a reasonable period of time to achieve capture, management, processing, and organization to help business decision-making more positive purpose of the information.

The characteristics of big data. The amount of data, the variety of data, the requirement for real-time, the value of the data hidden in the big.